> > Are you talking about that you only got a subset of this patch set?
> 
> No, I'm saying I don't want to waste a bunch of time tracking down exactly which
> commit a 36 patch series is based on.  E.g. I just refreshed tip/master and still
> get:
> 
> Applying: x86/idtentry: Incorporate definitions/declarations of the FRED external
> interrupt handler type
> error: sha1 information is lacking or useless (arch/x86/include/asm/idtentry.h).
> error: could not build fake ancestor
> Patch failed at 0024 x86/idtentry: Incorporate definitions/declarations of the FRED
> external interrupt handler type
> hint: Use 'git am --show-current-patch=diff' to see the failed patch

That is due to the following patch set (originally from tglx) is not
merged yet:

https://lore.kernel.org/lkml/20230621171248.6805-1-xin3.li@intel.com/

Sigh, I should have mentioned it in the cover letter.

As mentioned in the cover letter, 2 patches are sent out separately
as pre-FRED patches:
https://lore.kernel.org/lkml/20230706051443.2054-1-xin3.li@intel.com/
https://lore.kernel.org/lkml/20230706052231.2183-1-xin3.li@intel.com/

Sorry it's a bit complicated.

Got to mention, just in case you want to try out FRED, the current
public Intel Simics emulator has not updated to support FRED 5.0 yet
(it only supports FRED 3.0). The plan is late Q3, or early Q4.